Albeet schmitz



(No ModeL) SC'I-IMITZ. MANUFACTURE 0]? ICE AND APPARATUS THEREFOR.

No. 328,523. Patented Oct. 20,1885

Nirn STATES PATENT FFICEQ ALBERT SOHMITZ, OF ESSEN-ON-THE-RUHE, ASSIGNORTO \VILHELM RAYDT, OF HANOVER, PRUSSIA, GERMANY.

MANUFACTURE OF ICE AND APPARATUS THEREFOR.

QPECIPICATION forming part of Letters Patent No. 328,523, dated October20, 1885.

Application filed May 20, 1885. Serial No. 107,050. (No model.) Patentedin England March 14, 1885, No. 3,347,- in Belgium March 14, 1885, No.08,103; in Italy May 4, 1885, XXXVI, 80, and in Austria-Hungary May 20,1885, No. 10,500 and No. 27,121.

To aZZ whom it may concern:

Be it known that I, ALBERT SCHMITZ, en-

gineer, a subject of the King of Prussia, re-

siding at Essen-on-the-Ruhe, Germany, have invented certain new anduseful Improvements in the lilanufacture of Ice and Apparatus therefor;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to letters or figures of referencemarked thereon, which form a part of this specification.

The object of this invention is to utilize the spent cooling-water inice-machines for the purpose of lowering the temperature of the water tobe frozen; and it consists, essentially, in utilizing the spentcooling-water for the production of cold by the combination, with thefreezing cell or chamber, or the tank from which said chamber is fed, ofan injector fed and operated by the spent coolingwater to lower thetemperature of the water to be frozen by rarefaction of the air in thevessel in which said water to be frozen is contained, whereby the spentcooling-water is advantageously utilized in the manufacture of ice, andthe use of complicated air-exhausting apparatus dispensed with.

The injector supplied with cooling-water may be connected either withthe receiver for the water fed to the freezing-cells of the icemachine,or with the cells themselves.

In the accompanying drawings, Figure 1 shows my invention as carried outin its ap plication to the tanks from which the water to be frozen isfed to the freezingcells. Fig. 2 is a section of a freezing-cellconstructed for connection with the injector.

e 6 indicate two closed tanks or receivers, from which thefreezing-cells are alternately fed by connection with pipes 12 1),provided with stopcocks f f. Each vessel or tank has a feed-pipe, P P,each provided with a stop-cock, g and g, and by means of pipes at m,pipe P and connection p the said tanks are connected with any suitableinjector, a, fed with coolingwater through pipe I), which water, afterleaving the injector, passes to the condenser through pipe 0.

Pipe P has two three-way cocks, d and d, to which are connected thepipes m m of tanks 6 6, respectively, and with said three-Way cocks areconnected pipes h and h, respectively, by means of which the tanks 6 eare placed in communication with the outer air.

WVhen one of the tankssay that c, for instanceis to be filled, thestop-cock f is closed, and the three-way cock (I so set as to place theinterior of the vessel in communication with the outer air through pipeh. vThe stopcock 9 is opened and water is admitted to tank 6, the airtherein escaping through pipe h, and by means of which latter it mayalso be determined when the tank is full. NVhen the latter has beeneffected, the stopcock g is closed and the three-way cock set to closethe communication with the outer air through pipe h and establishcommunication with the injector. After the air has been exhausted fromtank 6 and tank 6 emptied, the Water in tank 6 may be fed to thefreezing-cells by opening stop-cock f and setting stop (1 so as to cutoff communication with the injector and establish communicatiomthroughpipe h, with the outer air, and tank 6 is now filled, and so onalternately.

It is obvious that a single tank may be employed; but for continuousoperation two tanks become absolutely necessary, and this number may beincreased indefinitely, according to the capacity of the machine.

The injector, instead of being connected with the feed-tank to lower thetemperature of the feed-water by producing a partial vacuum in saidtank, may be connected with the freezing-cells themselves. In the lattercase the cells are provided with a cover, 19, to which is secured anelastic packing or lining, i. The cover has a branch pipe, r, forconnecting the cell Owith the injector a. As soon as the injectorcommences to work to draw air from the cell the lid or covcrp will bedrawn tight to its seat and form an air-tight joint by means of theelastic packing. The branch pipe or connection r in practice ispreferably a flexible one to facilitate the manipulation.

I claim air in the vessel in which the water to be frozen Inthemanufacture of ice, utilizing the spent is contained, substantially asdescribed. 1o cooling-water for the production of cold by In testimonywhereof I affix my signature in the combination, with the freezing cellor champresence of two witnesses.

5 ber, or the tank from which said. chamber is ALBERT SCHMITZ.

fed, of an injector fed and operated by the Witnesses: spentcooling-water tolower the temperature HEINRICH LIPPERT,

- of the water to be frozen by rarefaction of the I HERMANN KUHF s.

